The arp requests are broadcast frames, while arp responses are unicast. how it is possible?

Which player type acts on other players? a. killer b. achiever c. explorer d. socializer

William travels a lot on business purpose. he needs to regularly communicate with his business partner. he also needs to send out weekly reports to his boss while he is traveling. which web-based application best suits william’s needs? (social media, webmail, wiki) is the best web-based application for william. he can access this application via the internet using a (digital cable, fax machine, web browser).

Which spreadsheet operation does a look function perform?